Torch for plumbers&#39; use



une 24 19% n g W. F. PAGEL TORCH FOR PLUMBERS. USE

Filed April 1v, 1922 2 sham-sneer 1 zml/@71 2? fag@ .Emile p 19241 n AW. F. PAGEL.

TORCH FOR PLUMBERS USE Filed April 17. 1922, 2 sheets-sheet, 2

, Patentes aus@ aa, iena WILLIAM F. PAGEIQ, OFF SYCAMOR, ILLINOIS.

TORCH FOR PLUMBERS USE.

application mea april 17, 1922. semina. 554,246.

To all whom t may-amara.

Be it known that I, WILLIAM F. PAGEIL, a citizen ofthe United States,and resident of Sycamore, inthe county of De Kalb and State of Illinois,have invented certain new and useful Improvements in a'Torch forPlumbers Use, of which the following is a specification.

. My invention relates to improvements 1n torches of the type known asplumbers torches, the object of my invention being to simplify andimprove the construction of the torch and particularly of the fuel feedand air control devices.

lA further object is to provide means whereby the entrance end of thefuel delivery tube within the tank will always be immersed in the fuelregardless of the position in which the torch is laced in while beingused, so long as there 1s sufficient fuel in the tank.

My invention resides in a plumbers torch having a closed tank forcontaining the fuel, which tank is free of openings except one fillingopening at the top and which filling :opening is adapted to be closed bythe feed devices for the burner. Furthermore the burner, feed devices,and pump are arranged in a unitarystructure so that the torch as a wholeconsists only of this unitary structure and the tank.

A further feature 'of my invention is found in a flexible fuel deliverypipe which depends within the tank and which is adapted to fall to sucha position relative to the position of the tank that its inlet end isalways immersed in the liquid fuel in the tank so long as there issufficient fuel to reach the lower end of the pipe. In other words, ifthe tank is tipped out of its normal position, the feed ltube beingflexible, its lower inlet end hangs downwardly and is i immersed in thefuel.

A further feature of importance relatesv to a simple safety valveconnected with the air passage which is adapted to prevent an excessivepressure being applied to the tank and in combination with this safetyvalve, I arrange a manually operable relief valve which is adapted torelease all pressure from the tank at times when the torch is not inuse.

A particular object of my invention is to provide a plumbers blow torchso constructed that the fire hazard incident to the use of such torchesis eliminated.

My invention will be more readily understood by reference to theaccompanying drawings forming part of this specification, and in which:

Figure 1 is a fra mentary vertical central sectional view o the torch,parts thereof being shown in side elevation;

Figure 2 is a fragmentary vertical transverse sectional vie on the line2 2 of Fi re 1;

igure 3 is a detail sectional. view of the inlet end of the flexiblefeed tube;

Figure 4 is a fragmentary view similar to Figure 1 showing a'slightmodification of my lnvention.;

Figure 5 is a horizontal sectional view on the line 5-.-5 of Figure 4;

Figure 6 is a fragmentary sectional view on the line 6 6 of Figure 5,and

Figure 7 is a horizontal sectional view on the line 7 7 of Figure 1. l

In said drawings, 1. represents the tank of the torch which 'is made upof an outer or main sheet metal member 2 in the form of an inverted deepcup and a sheet metal bottom 3 which is curved upwardly within th"elower end of the mainmember 2 so that it will withstand the pressurewhich is used in such torches, the lower ends of these two members beingrolled together and soldered, as slliown at 4, providing a closed sheetmetal tan The tank has a central opening 5 in .its fiat upperwall 6.This opening receives a nozzle 7 depending from a. cup member 8, thenozzle being externally threaded to receive a locking nut 9 within thetank for securing the cup in position. This locking nut is adapted to besoldered to the shell to prevent possible leakage at this point. The cup8 is provided with an external upwardly extending circumferential flange10 to assist in filling the tank with liquid fuel. The nozzle 7 has acentral bore 11 forming a filling opening and which is internallythreaded to receive a threaded stem 12 on a head memberl. This member isprovided with a flange 14 which carries a suitable packing washer 15adapted to' contact with a concentric'rib 16 on the cup so that when thehead 13 is secured with the stem 12 in the threaded opening l1, thepacking washer l5 and concentric rib 16 effect the hermetical sealing ofthe tank at this point. The niember 13 extends horizontally, one endbeing provided with an internally threaded nozzle l 17 for rivin a pumpcyliuuder 18 and the opite en having an integral lelbow 19 formed toreceive a connecting vpipe 20 upon the upper end of which is arrangedthe burner 21 of the torch. Below the pump with a central'verticalplassage 28 which extends vdown through e stem 12 for delivering airfrom the pump to the tank and at the upper end of this passage themember is provided with a valve chamber 29 within which is arranged aspring-pressed check valve 3() and a small passage 31 leads from thepump cylinder to the valve chamber, said passage 31 being closed 'by thevalve30. The valve chamber 29 is closed at its outer end by a screw plug32 and l provide a suitable spring 33 for holding the valve to its seatand preventing the escape of air from the tank back to the pump. Themember 13 is also provided with a fuel feed delivery passage 34 whichextends outwardly to the elbow 19 for delivering fuel to the burner-andalso extends downwardly through the stem 12. For the purpose of feeding-thefuel from the lower part of the tank to said 'feed paage, l providea Hexible delivery tube 35 having a threaded connection 36 at' its upperend adapted to be screwed into an enlarged opening 37 at the lower end0f the feed passage 34. Upon the lower end of the delivery pipe 35 lsecure a head 38. This head is in the form of a cap having a centralinlet opening 39 in its lower wall 40. rllhe llower wall 40 is spacedfrom the extreme lower end of the tube and in this spacel provide a newire screen 41 for preventing any dirt or dust entering the 4tube 35.The cap 38 not only provides means for holdingthe screen 41 in positionbut also provides a weight for the lower end of the feed tube whichcauses the lower end of the feed tube to fall by gravity if the torch istipped, and in thus falling, the lower end is carried into the liquid,as indicated in dotted lines in Figure 1 wherein the dotted line 42represents the level of the liquid when the torch is tipped.

ln filling the torch the member 13 with all of its attached parts isunscrewed and removed and then the liquid can be poured into the cup 8and flows through the threaded openin 11 into the tank.

llrprovi e means for automatically relievaccesos when' applying pressureby means of the air pump.

.spring pressed safety valve 43 closing one end of a transverse passage44 connected with the passage 28 through which air is delivered to thereservoir. rllhis valve is mounted in a valve chamber 45 on vthe membery13 and which is closed at its outer end by a screw plug 46. Thechamber` 45 is provided with a suitable vent opening 47 rlhe oppositeend of the transverse passage 44 is closed by a needle valve 48 which ismanually adjustable to close or open the passage 44, and having asuitable vent opening 49 provided topermit the free relief of the tankwhen the valve 48 is` unseated. The safety valve 43 ,automaticallyrelieves the reservoir of excessive pressure and the rlhis relief meansconsists of a valve 48 is used to relieve the reservoir of all pressurewhen the torch is not in use.

lt is to be notedthat there is but one opening intothe tank which has tobe sealed in contradistinction to the many openings in torches asheretofore made. Further it is tobe noted that all the machine work andassembling is confined to a unitary structure including the burner, thedelivery tube, the pump, the handle, and the Vvarious valves thusgreatly simplifying the manufacturing operations and reducing the costof such devlces.

The above advantages are also found in the form of my inventionillustrated in Figures 4 to 6 inclusive.

ln this modified forml of my invention l have shown the same form ofunitary burner and handle member with some distinctions of importance.

rlhe most noticeable of these is the vertical arrangement of the airpump 50 instead of the horizontal arrangement shown in Figure 4 1. lprovide the head member 51 which is ysimilar to the member 13 in Figure1, with A threaded head or collar 53 adapted to be received in and toclose the upper end of the hollow handle.y rllhe pump cylinder does notlill'the hollow handle and from the upper part of the hollow handle anair delivery passage 54 leads through the member 51 and through themounting nozzle 7 into the reservoir as in the former instance. As inthe form shown in Figure 1, l provide a flexible tube 35 through whichthe liquid fuel is delivered to the burner through the delivery passage34.

ll provide .means for regulating the dow of the fuel through the fueldelivery passage 34 which operates to cut the flow down to an amountjust sufficient to keep the burner hot at times when the maximum ame. isnot revalve enters the passage 34 and is ada ted to close off same moreor `less in an o vious manner. The valve 55 1s ordinarily set to l allowjust sufficient ilow of fuel through the passage 34 to keep the burnerhot and I pro vide means vso t veniently and readily o en the valve toallow a sufficient flow of'fl maximum ame. This means consistsA of alever handle 56 ixed on the stem of the valve 55 by. a set screw 57.4The lever 56 projects along side of the member 51 toward the handle 52and has a thumb piece 58 conveniently located to receive the thumb ofthe operator when a'sping the handle 52 with the right handg.r

By swingin the lever 56 toward the member 51 the va ve is opened and Iprovide a spring 59 arranged between the lever 56 and the' member 51 tonormally maintainv the valve 55 at the minimum iiow position. The spring59 is held on a stem 60 which-is rigid with the l ver 56 lwhich stemprojects and strong enough for all or i:

through an openg'ng 61 in the member 51.

Sometimes it 'is desired to arrange the valve 55 to remain at itsmaximum iiow position and I accomplish this and relieve the operator of-continuously holding the valve open by providin a projection 62 in theopenin 61 adapte to be received in a notch 63 in t e stem 60 when thestem is pushed through the opening 61 far enough.

The Sw/inging of the lever 56 will cause j the projection 62 to engagein the notch 63 the parts being yielding enough to permit.

this engagement and when it is desired to release the stem and permitthe valve 5.5 to close to its minimum ow position, 1t 1s merelynecessary to force the free end of the stem away from this projection bya slight pressure on the stem.

To provide a fine adjustment of the valve 55 for normal low or minimumfuel feed, I provide an adjustable nut 64 on the free end 65 of the stem60 and adapted to contact with the side'of the member 51 to limit thethrow of the `lever 56 by the spring 59. By adjusting the nut 64 in orout as the case may be, the valve 55 is obviously adjusted for more orless minimum feed as may be necessary. v

The modified form of my invention is also provided with thel transversepassage 44 controlled by a safety valve and a manually operablereliefvalve as in the form first described.

While the connection o'f the unitarystrucand the several connections,devices and valves, with the reservoir, as described, is

at the operator can con-,

el -to maintain the J- relief passage.

usa e, I have found that it is advantageous4 shown in Figure 1, or thehollow form shown in Figure @rigidly to the reservoir. This bracingmeans consists of a brace projection 67, preferably integral with thelower end 66 of the handle, extending inwardly from its inner side oredge toward the reservoir, its end being provided with thin lateralprojections 68 curved around the reservoir. I provide a flatsheet metalband or ring 69 extending entirely around the reser-` voirin the. formofa hoop, the ends 70 of the ring being secured to the two rejections 68at the inner end of the brace 6g by rivets 71. The hoop or ring 69 fitson the outer cylindrical surface of the reservoir and can be rotatedthereon as the head 13 or 51 is mounted on the reservoir by screwingvthe nozzle 7 into the threaded openin 11.

It will be obvious that when t e nozzle 7 fof the unitary structure isscrewed into the `reservoir the unitary structure is rigidly braced andcannot accidentally strain the connection of these two members evenshould the torch fall andl strike upon a projecting part ofthe unitastructure.

As many modi cations of my invention will readily suggest themselves toone skilled in the art, I do not limit or con vention to the specificdetails of construction herein shown and described.

I claim; 1. The improvements hereindescribed comprising a plumbers torchhavin a fine my inclosed sheet metal tank provided with ut one opening,said openin at the top of the tank, an ajunltary structure comprising anair pump, a burner and connections adapted to be secured in saidopening, said structure having a horizontally extending, rigid, integralbracket arml for supporting the pump.

2. In a plumbers torch having a closed tank provided with 'a fillingopening at its top, a unitary structure including a threaded stemforpclosing said opening, an air pump carried by said stem and passagesprovided in `the stem for delivering air' from the pump into the tank, arelief passage in said structure between the ump and the tank andconnecting with the open air, and a spring pressed relief valvecmitrollingv said being arranged f `3. ln .a plumloers torch having aclosed tank provided with a lling opening at itsl top, a threaded stemforclosing said openl ing, an air pump carried by said stem and aassages provided therein for delivering air rom the pump into the tank,and a inanually operable relief valve arranged betweenthe pump and thetank as and for the purpose specied. v v

d. ln a device of the kind described, a miitarystructure carrying an airpumdp and a burner and having a screw threade stem for mounting it upona fuel tank, the structure having a threaded socket for receiving 16 thepump barrel, and provided with a ring support for engagement with thebarrel of the pump between its ends, as and for the purpose specitied. l

5; The improvements herein described wcomprising a plumber-s torchhaving a closed sheetA metal tank provided with lout one opening, saidopening being arranged at the top ol the tank, and a unitary structurecomprising an air pump, a handle, and connec- 25 tions adapted to besecured in said opening, said structure having a horizontally exten ing,rigid, integral hracket arm for supportingthe pump. I

6. The improvements herein described 30 comprising a plumbers torchhaving a closed sheet metal tank provided with lout one opening, saidopening being arranged at the top of the tank, and a unitary structurecomprisin an air pump, a handle, the necessary 35' contro valves and afeed pipe adapted to depend within the reservoir of the torch, and meansfor rigidly `hracin the unitary structure to the reservoir whi epermitting the rotation thereof for mounting and ded@ mounting it.

neeaeoe atively to thel reservoir, such bracing pen.

mitting `the free rotation of the unitary structure for mounting anddemounting.'

8. 'lhe improvements herein descrihed comprising a plumbers torch'havinga closed sheet metal tank provided with hut one opening, said openingbeing arranged at the top of the tank, and a ry structure comprising anair pump, a han le adapted to depend alongside the reservoir, the loweren 'of the handle having a rigid projection extending toward thereservoir and a ring jtting uponthe reservoir and rigidly secured tosaid projection for bracing the unitary structure and permitting itsfree rotation, as and for the purpose specied.

9. ln a torch of the kind derihd, a .l.: havin a filling opening in itstop, a Klug for sai opening, an air pump arranged orizcntall andsupported upon said plug,

`said plug orming part of a unitary structure which carries the hui-nerfor-the torch, and a `iiuel delivery pipe secured to theinner end of theplug and adapted to depend in the tank, an air pump arrel screwed into athreaded opening in said plu and a horizontal' extending bracket provied with a ring for surrounding the pump barrel and retaining it inposition. f

Signed at Chicago, lll., this .llth day of apra, iam,

wnimnn' n. raam...

GID

